Illustrate the spectrum of imaging findings of prenatal and postnatal diencephalic-mesencephalic junction dysplasia (DMJD). Read More

Meeting name: SPR 2024 Annual Meeting & Postgraduate Course , 2024

Authors: Juang Eric, Parikh Rajan, Goncalves Luis, Cornejo Patricia

Keywords: Fetal, hydrocephalus, L1CAM mutation

The purpose of this educational presentation is to delve into the physics of Microvascular Flow Imaging (MVFi) and showcase its significance in the imaging of pediatric vascular anomalies. MVFi complements grayscale and traditional color or power Doppler imaging of vascular malformations. MVFi is an advanced Doppler ultrasound technique that excels in detecting slow blood flow in smaller vessels and capillaries without the use of a contrast agent. Different vendors utilize proprietary MVFi algorithms to isolate the slow flow signal from tissue artifacts and enhance spatial resolution. However, MVFi algorithms are susceptible to motion and flash artifacts, which can be challenging in young children. Nevertheless, in the appropriate setting, MVFi enables improved delineation of slow-flow lesions through the detection of intravascular slow flow, which may be located in the lesion or in the surrounding tissues. MVFi can play a vital role in monitoring residual or recurrent disease following intervention. In this work, we will explore the physics through case presentations to illustrate the combined use of MVFi with grayscale and conventional Power Doppler in diagnosing and managing pediatric vascular anomalies with slow flow. Read More

Meeting name: SPR 2025 Annual Meeting , 2025

Authors: Juang Eric, Giersch Kristie, Katz Danielle, Annam Aparna, Tutman Jeffrey, Zavaletta Vaz

Keywords: Vascular Anomalies, Vascular Imaging, Doppler US

Through a series of cases, this poster demonstrates how to diagnose and treat biliary anastomotic complications with image-guided techniques in infants after liver transplant. We present several cases to illustrate the variability of biliary anastomoses including location, type, and number of anastomoses. Pediatric interventional radiologists and image-guided procedures are critical in the successful management of post-transplant biliary anastomotic strictures and leaks and minimize the need for invasive reoperation. The selected cases illustrate complex image-guided percutaneous management of multiple duct anastomotic strictures, anastomotic dehiscence, cut surface leaks, and removal of surgically placed stents that may be malpositioned and/or causing obstruction. The interventional methods used to percutaneously manage these cases include complex biliary access utilizing snares, multiple drain placement, stent placement, and rendezvous procedures with endoscopic retrograde cholangiopancreatography. The use of image-guided techniques by the pediatric interventional radiologist are invaluable in the management of biliary complications post-liver transplant in infants. Read More

Meeting name: SPR 2025 Annual Meeting , 2025

Authors: Juang Eric, Collard Michael, Katz Danielle, Adams Megan, Wachs Michael, Annam Aparna, Zavaletta Vaz

Keywords: Transplant Interventions, Biliary, Image-Guided